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In-Situ and Ex-Situ Remediation Services at Former Mine

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Farallon Provides Combination of In-Situ and Ex-Situ Remediation Services for Former California Mining and Industrial Site for Residential Redevelopment.

Located in Niles Canyon, east of Fremont, California, the 80-acre site was historically used as a clay mine and brick manufacturing facility in the early to mid-1900s. Previous site investigations identified heavy-chain petroleum hydrocarbon impacts to site soil and groundwater due to leaking underground storage tanks and concrete vaults used to store crude oil. On-site soil and groundwater impacts were remediated through excavation and dewatering.

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Farallon worked with multiple oversight agencies to characterize an off-site hydrocarbon plume that impacted an adjacent water body, designed in-situ groundwater remediation, and operated a pilot study of enhanced bioremediation of soils excavated during previous remediation activities.

Design elements included injection of chemical oxidizing agents and colloidal-activated carbon, installation of an interceptor trench backfilled with a permeable mixture of sand and proprietary adsorptive materials, and soil treatment with proprietary enzymes to enhance microbial metabolism.


Services Utilized

Contaminated Site Investigation and Cleanup

Over the past 20 years we have developed a top-tier team of technical professionals including experts in contaminant fate and transport characterization, modeling, and remediation engineering who have successfully developed and...

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Meet Our Experts

James_Schwartz James Schwartz Principal Geologist, Quality Director

James is a well-seasoned advisor with 25 years’ experience in solving his clients’ complex environmental problems. While he specializes in due diligence and property redevelopment, he also handles a wide...

smiling-farallon-employee-with-short-brown-hair Kevin Halpin Associate Geologist

Kevin is a Project Scientist with almost 6 years of experience in the environmental consulting industry. His background includes project management for site characterization and remediation activities, health and...

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